I don't know much about US law but if this happened to me here in Canada I would do the following:

Take the guy to court, get the ticket dropped, point at him, and LAUGH / Case Closed.

id do that but im thinking what would be the point of fighting it cuz my car is tinted .....its just he never told me or complained anything about my tint it just came in the mail out of no where ...the ticket he gave me was cuz not having my drivers license